import helloworld
import helloA.DemoA


class DemoB(object):
    def __init__(self):
        pass

    @staticmethod
    def show():
        print("this is DemoB")

    @staticmethod
    def showall():
        DemoB.show()
        helloworld.mainshow()
        helloA.DemoA.DemoA.show()


if __name__ == "__main__":
    import sys
    print(sys.path)
    print("DemoB world")

    DemoB.showall()
